Roof construction



Jan. 22,1946

F. O'CONNOR ROOF CONSTRUCTION Filed, March 20 1944 n r l l /ml unnwnl nHM u a La M 5 7 W I a \A w W M W HIMMMW MWW NHWQM ATTORNEYS.

Patented Jan. 22, 1946 Union Asbestos & Rubber Company, a corporation ofIllinois Application March 20, 1944, Serial No. 527,202

4 Claims.

This invention relates to roof construction and more particularly to aroof construction for railway cars and the like.

One of the objects of the invention is to provide a roof construction inwhich the joints between adjacent roof sheets are tightly sealed at theeaves of the car.

Another object is to provide a roof construction formed by a pluralityof roof sheets in which water-tight joints are provided between adjacentsheets throughout their full length.

Still another object of the invention is to provide a roof constructionwhich is easy and inexpensive to manufacture and install, either as anew roof or as a replacement.

The above and other objects and advantages of the invention will be moreclearly understood by reference to the following description when readin connection with the accompanying drawing in which:

Fig. l is a partial plan view of a car roof embodying the invention;

Figs. 2 and 3 are enlarged sections on the lines 2-2 and 3-3respectively of Fig. l; and

Fig. 4 is a partial section On the line 4-4 of Fig. 2.

The roof illustrated is. adapted to be installed on a railway car havingside plates l0 extending along the length of the car and formed by Z-shaped bars .having upstanding inner flanges rolled over, as indicatedat H, to support the roof. The roof is formed by a plurality of sheetsl2 of metal or the like laid across the side plates and connected bytransversely extending seams.

The plates are joined by forming each plate at its opposite edges withan upstanding flange l3 which are butted together. terminate in asloping edge l4 adjacent the ends of the sheet to leave a plane portionI5 of the sheet extending across the side plates and downwardlythereover. When the sheets are assembled the flanges are placed face toface and the portions l5 of the sheets meet in a plane buttjoint. Theflanges are covered by seam covers l6 which are channel shaped to fitover the flanges and which have skirt portionsl'l par-. tially overlyingthe upper surfaces of the sheets. The flanges and seam covers arejoined'by fastenings such as rivets l8 extending therethrough.

The seam covers terminate at their ends in downwardly extending portionsI9 overlying the portions l5 of the sheets and terminating adjacent thelower ends of the portions IS. The seam cover portions l9 are closed attheir lower ends by closure plates 2 I, welded or otherwise se- Theflanges l3 cured therein, to form closed pockets overlying thebutt-joints between the sheet portions [5.

In order to seal the joints between portions l5 at the eaves of a caragainst moisture, the downwardly extending portions 19 of the seamcovers are filled with a sealing material. As shown, such material maybe forced into the seam covers after assembly through openings thereinclosed by plugs 22. Preferably a plastic, non-drying, sealing materialis employed such as an asphalt or tar composition mixed with anon-drying oil or plasticizer, or a gum or wax compound such as thatsold commercially under the trade name Permagum. This material is forcedinto the seam cover in suflicient quantity to extend up over the cavesof the car, as shown at 23 in Fig. 3. Thus it effectively seals thejoint between the portions l5 of the roof sheets as well as the ends ofthe flanges 13 to prevent moisture from getting into the car at theeaves.

While one embodiment of the invention has been shown and described indetail herein, it is understood that this is illustrative only and isnot intended as a definition of the scope of the invention, referencebeing had to the appended claims for that purpose.

What is claimed is:

1. A roof construction for a car or the like having parallel side platescomprising a plurality of roof sheets extending across the side platesand having abutting upstanding flanges at their adjacent edges, achannel shaped seam cover fitting over the flanges of each pair ofsheets and. terminating at its ends in hollow closed portions extendingdownwardly around the side plates and including the seams betweenadjacent side plates, and plastic sealing material filling said portionsand sealing the seams between the roof sheets.

2. A roof construction for a car or the like having parallel side platescomprising a plurality of roof sheets extending across the side platesand. having abutting upstanding flanges at their adjacent edges, saidflanges terminating substantially in alinement with the side plates andthe roof sheets including portions extending across the side plates anddownward thereover, a channel shaped seam cover fitting over the flangesof each pair of sheets and having downwardly extending hollow portionsoverlying said portions of the roof sheets, and plastic sealing materialfilling said hollow portions of the covers to seal the joints betweenthe downwardly extending portions of the sheets.

3. A roof construction for a car or the like wardly extending hollowportions overlying said 10 portions of the roof sheets, means closingthe lower ends of said portions of the channels to form pocketsoverlying the joints between the downwardly extending portions of. thesheets,

and plastic sealing material filling said pockets. 5

4. A roof construction for acar or the like having parallel side platescomprising a plurality of roof sheets extending across the side platesand. having abutting upstanding flanges at their adjacent edges, achannel shaped seam cover fitting over the flanges of each pair ofsheets and terminating at its ends in hollow closed chambers inclosingthe seams between the edge portions-of adjacent side plates, and plasticsealing' material filling said chambers and sealing the seams betweenthe roof sheets, said seam lcover having an aperture therein openinginto the hollow closed chambers and closure means removably secured inthe aperture.

ARTHUR F. OCONNOR.

CERTIFICATE OF CORRECTION; Patent No, 2,595,to1. 1 January-22, 19b6,

ARTHUR F. O'CONNOR.

It is hereby certified that error appears in the printed specifieation'of the above numbered patent requiring correction as follows: Page l,second eolumn, line-56, for "including" read -lnelosing and that thesaid Letters Patent should be read with.this correetion therein that thesame may conform to the record of the case in the Patent Office.h

Signed and sealed this 9th day of April; A: D. 19h6.

Leslie Frazer (Seal) First Assistant Commissioner of Patents.

